Hello,
I believe there is a KnowledgeBase entry on the NI website that states you cannot build a LabVIEW application to any removeable media. Trying to specify your build destination as a floppy disk, ZIP disk, etc., will result in an error or a crash upon building. You must build you application to your hard drive, then copy it to your removeable media.
I hope this sheds some light on the problem for you. Good luck with your application, and have a pleasant day.
Sincerely,
Darren Nattinger
Applications Engineer
National Instruments